Ratchet mechanism



m. 2s, 1924. Y 1,513,209

. R, BACCELLIERI l RATCHET MECHANI S M Filed April l2 1924 2A Sheets-Shea'` N M @femm Patented @et 28, 1924.

innata RAFFAELE BACCELLIERI, G PHELADELPHI, EENNSYLVANIA.

RATCHET lT-,IECHANISMZ application ined apre ie,

tally pivoted arm carrying .a vertically slidable pawl, the wears at the pivot to a loose lit. This allows the arm to swing vertically in the direction of the sliding pawl. Nhen horizontal stress is placed onl the arm to actuate the Aratchet wheel, the

` pawl and arm, being resisted in their horiin the ratchet wheel.

Zontal movement by the ratchet wheel and tree to move vertically by the loose tit at the pivot, move in a vertical direction. This action causes the pawl to slip out ot its hole `When thev ratchet mechanism is worn tov such extent that the pawl, instead of takinga hold when within a hole in the ratchet wheel, slips out oi the hole, it is useless and-practically beyond repair. i Y

rllie objects of my invention are to.,pro vide means on a ratchet mechanism which will lieep the actuating arm and its'pawl' in proper position for taking y hold of thel ratchet wheel at alltimes regardless-of the wear or loose lit at its pivot, and to provide a ratchet mechanism which may be readilyA cast and requires practically nomachining.`

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manne reference being had to the accompanying drawings in which- Figure 1 is a side elevation of a fruit press partly in section having my invention applied thei'eto,

Figure 2 a plan view otmy invention, Figure 3 a section on line 8-3 of Figure 2,

Figure 4 a section on liner 4 4 of Fig'- ure 2, and `Figure 5 a fragmentary 5--5 of Figure 2.

Referring to the drawings, 1 indicates -aj base having a counter-bore 2 which formsa shoulder 3. A ratchet wheel 4 has the lower end 5 of its hub rotatably mounted within the bore and resting on shoulder 3. If desection on line 1921i. seriaiiio. "ice-,eea

sired, a thrust ball or roller bearing may be interposed between the end 5 and shoulder 3. The upper end 6 of the hub has an annular groove 7. A head 8 is pivoted to the base at 9 and has an actuating arm 1() pivoted thereto at 11. The actuating arm is ot the yoke type and has pawls 12 slidable in the ends of the yoke. The pawls are adapted to engage within any of the holes 18 spaced aroundv the ratchet wheel. For the purpose of increasing the speed of rctationvwhen the resisting torque ot the ratchet wheel is small, provide holes 14spaced around the wheel nearer to its center' than the holes 13j Pawls 12 may beinserted in guideways 15 to engage withinvrthe holes 14. vided with guides 16 embracing the inner wall of and sliding within annular groove 7 to hold the arm against movement in the direction of the axisot the ratchet wheel.

`The hub of the ratchetwheel is threaded as 'shown at'17 and receives'a screw 18 secured to a support 19 ot an ordinary fruit press. A cage 20rests on the support and surrounds thescrew.y VPressure blocks 21 are adapted toL Arm 10 is proratchet wheel and the other pawl slides out` Voi' a hole.

of a hole and the second pawl engages within'a hole, andV moves theratchet wheel, thus reciprocating movement of arm 10 will impart rotary movement to ratchet wheel 4. 1When it' isidesired to move the ratchet wheel at a. greater speed, pawls 12 are placed within guideways 15 and the mechanism actuated asbei'ore, the pawls engaging within and sliding out of holes 14 which are nearer to the center of the ratchet wheel. Y Annular groove 7 co-operating with guides 16 prevents karm 10 from swinging upward and kkeeps the arm in proper position over the ratchetwheel so that the pawls chining Vbecause arm 10 holds the ratchet wheel inthe counterbore, and the annular When the'rm isY moved in the 'l' opposite direction the VVfirst pawl slides'out 95 iio' parte. This allows the parts to he used as cast. lt is not esscntel that the pivotsv 9 and 11 iit accurately Within their holes, be-

cause the arm is held in groper position oy guides 16 and groove *L While l have described my invention as taking particular forni. it will he undersrood that the various pe changed 'without departing 'fron-A it thereof, and hence do not li iit niysel to the :oreA oise const action set forth, het consider that l ani at libert-y toA maire sneh changes and alterations as ainj* of the appended c ins. Y

Having; thus desc 1ihed niy inventioin what claire. as new and desireto secure hy Let ters Patentis l. lin a ratchet mechanisnn a rat Wheel; an arni inovahle transversely t axis of the Wheel; a pawlsiidaole in the, ern in the directionl or the axis o'i' UA.e adapted to engage andniove the Wheel., means igor herding the aim against'niovenient inthe direction o1. the axis of th Wheel.

2. ln a1 ratchet ine-ohanisrn7 Wheel; ank erin movable. transversely to the axis of the Wheel; a pawl slidahle in the arni in the direction ofthe afgis oi the Wheel and adapted to enage and move the Wheel.7 and means on the wheel for holding the erin against niovernent'in the direction ot' the axis oiA the Wheel.

3. in a ratchet inec ianisnfi, 'a ratchet Wheelhaving an annular groove; an

Vmovable Within the .groove transverseiy to its axis., anda paWl siidahle in the arin in the direction ot the airis oi" the Wheel and adapted to engage and inove the Wheel.

f t. ln a ratchet mechanism, a base having coine Within the scope a. counter-here; a ratchet Wheel having one end oi" its huh rotatable in the bore and the other end provided with an annular groove;

Van arrn movable` Within the groove trans versely to the axis oit the Wheel; a pavvl slidahlein the erin in the direction ofthe axis of the Wheel and adapted to engage and move `J@he .vheeh and means on the hase for moving the arm.

ln a ratchet mechanism, a ratchet Wheel having an annular groove; a yolred' arin provided with guides i" ovahie Within the groove transversely to its aXis anda paivl slidah'ie inthe afin in the direction of the axis of the wheel and adapted to en age and move the Wheel. Y l

o2 ln a ratchet mechanism7 a hase having a connterbore'; a rato iet Wheel having one endet its huh rotatable in the bore and the other end provided with an annular groove; a yolred arm provided withv guides movable Within the groove transversely to the axis of the Wheel; av Qawvl slidahle in the arm in the y direction of the axis of thewheel and adapted to engage and move thevvheel, and Ya head pivoted to the hase and the'arm.

7. ln a ratchet mechanism,l a ratchet Wheel having annular rows of spaced holes at direrent distances from its center, and an an-V nular groove in yits huh; a yoked arm prolvided with guides Vmovable' Within the RAFFAELE BACCELLlEEI.

Viitnesses: Y ELIZABETH GARBE, CHAS. E. PoTTs. 

